Study of the thermal and temperature conditions of flat and inclined lands tekis va qiyalik yerlarning issiqlik va temperatura rejimini o

 
Authors: 
Abdurahmanova U. K. - Head of Department, candidate of chemical sciences, docent, Gulistan state 
university, tel: [phone], Email: ugi_lay.912@ mail.ru. 
Qushiev H. H. - Head of the Laboratory "Experimental Biology" Gulistan state university, tel: 
994759134, E-mail: [e-mail]. 
Xudoynazarov M. Sh. - teacher of the department "Chemistry", Gulistan state university, tel: 
933018682, E-mail: [e-mail]. 
Majidov S. A.- doctoral student of the Department of Chemistry, Gulistan state university, tel: 
993464892, E-mail: [e-mail]. 

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* GULISTON DAVLAT UNIVERSITETI AXBOROTNOMASI,
Tabiiy va qishloq xo‘jaligi fanlari seriyasi. 2021. № 1
37 
Qishloq xo‘jaligi va ishlab chiqarish texnologiyalari 
УДК 504.7
HERBICIDAL ACTION AND MORPHOGENETIC ADAPTATION OF ‘SULTAN’ COTTON 
VARIETY
 
G`O`ZANING “SULTON” NAVIGA GERBITSID TA`SIRI VA MORFOGENETIK 
MOSLASHISHI 
ГЕРБИЦИДНОЕ ДЕЙСТВИЕ И МОРФОГЕНЕТИЧЕСКАЯ АДАПТАЦИЯ ХЛОПЧАТНИКА 
СОРТА СУЛТАН 
Pardabayev Sherzod Toxir o`g`li
1
, Xaydarov Xislat Kudratovich
2 
 
1
Jizzax davlat pedagogika instituti, 130100. Jizzax shahri Sh.Rashidov shox ko'chasi,4 uy 
2
Samarqand davlat universiteti, 140104, Samarqand shahri, Universitet xiyoboni, 15-uy 
E-mail: sherzod_aka92@ mail.ru 
 
Abstract. Ensuring the protection of agricultural plants from pests, diseases and weeds in our 
republic, preventing the harmful effects of plant protection products on human health and the 
environment are among the most important issues. This article describes in detail the resistance of 
cotton (Sultan variety) to herbicides (galaxifop-P-methyl), as well as the negative and positive effects 
of herbicides on seedlings. The study was carried out using various concentrations of herbicides and 
analyzed the individual morphological characteristics of plant seedlings at each concentration. The 
experiments were carried out in laboratory and field conditions. In the experiment, five types of 
concentrations of the herbicide galaxifop-p-methyl were selected, for each concentration 30 cotton 
seeds were sown and 8 morphological characteristics of a 50 day old seedling were analyzed (total 
length, number of side branches, number of shoots on the main branch, number of shoots on a lateral 
branch , the total number of shoots, the number of leaves on the main branch, the number of leaves on 
the side branch, the total number of leaves) and entered in the table. The statistical data on the change 
in the morphological characteristics of seedlings by the concentration of herbicides were studied and 
are presented in the tables. We have observed that in laboratory condition cotton is sensitive to 
herbicide concentrations in the Sultan variety, while the alternative concentration is important for the 
Sultan variety. It was found that this concentration has a positive effect on reducing the harmful 
effects on vegetation and the environment.